| 报告题目 | Synthesis, Structure, Property Relationships for Transparent Conducting Films of Metal Nanowires |
| 报告人 | Prof. Benjamin J. Wiley |
| 报告人单位 | Department of Chemistry, Duke University |
| 报告时间 | 2014-05-21 |
| 报告地点 | 环境资源楼报告厅 |
| 主办单位 | 合肥微尺度物质科学国家实验室、中国科学技术大学化学与材料科学学院 |
| 报告介绍 | Abstract：
There is an ongoing drive to replace the most common transparent conductor, indium tin oxide (ITO), with a material that gives comparable performance, but can be coated from solution at speeds orders of magnitude faster than the sputtering processes used to deposit ITO. Metals nanowires are currently the only alternative to ITO that meets these requirements. This presentation will start with a discussion of structure-property studies that show one of the key parameters that determine the properties of transparent conducting films is the aspect ratio of the metal nanowires. Modeling results have motivated the development of a new synthesis that produces copper nanowires with aspect ratios as high as 5700 in 30 min. These nanowires were coated from solution to create films with a specular transmittance >95%T at a sheet resistance of <100 Ω sq-1, performance that is comparable to that of ITO. Copper nanowire networks plated with Ni can serve as the transprent anode in organic solar cells that exhibit device efficienies of 5%, comparable to values obtained for devices made with Ag nanowires. Copper nanowire networks can also serve as transparent, compliant electrodes for dielectric elastomer actuators, or as transparent water oxidation/reduction catalysts for photoelectrochemical cells.
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